/*****************************
cube with a hole
*****************************/
lv = .1;
lc = .04;
Point(1) = {0.0,0.0,0.0,lv};
Point(2) = {1,0.0,0.0,lv};
Point(3) = {1,1,0.0,lv};
Point(4) = {0,1,0.0,lv};
Line(1) = {4,3};
Line(2) = {3,2};
Line(3) = {2,1};
Line(4) = {1,4};
Point(11) = {0.5,0.5,0.0,lc};
Point(12) = {0.5,0.7,0.0,lc};
Point(13) = {0.5,0.3,0.0,lc};
Point(14) = {0.3,0.5,0.0,lc};
Point(15) = {0.7,0.5,0.0,lc};
Circle(5) = {15,11,12};
Circle(6) = {12,11,14};
Circle(7) = {14,11,13};
Circle(8) = {13,11,15};
Line Loop(9) = {1,2,3,4};
Line Loop(10) = {7,8,5,6};
Plane Surface(11) = {9,10};

Extrude { {0.0,1,0}, {-.5,0.0,0.0}, 3.14159/4 }{
  Surface{11}; Layers { {5,15,5} , {.1,.9,1.} };
}

Extrude {0.0,.3,0}{ Surface{24}; }
